93210-10M74 Yamaha O-Ring | Genuine OEM Yamaha Outboard Part

🔧 Product Description

Genuine Yamaha Power Trim Manual Release Valve O-Ring - Part Number: 93210-10M74

A genuine Yamaha hydraulic O-ring used within selected power trim and tilt manual-release valve assemblies.

The O-ring seals the manual-release adaptor, valve seat or bypass passage so the hydraulic system can retain pressure when the release screw is closed.

⚙️ Key Features

• Genuine Yamaha OEM hydraulic O-ring
• Correct Yamaha part number 93210-10M74
• Used around the manual-release valve and adaptor
• Fuel- and hydraulic-fluid-resistant rubber construction
• Compatible with numerous Yamaha trim and tilt systems

🚤 Compatibility

Commonly used on

• Yamaha manual-release and hydraulic bypass-valve assemblies

Typically suits

• Engine models:
• Yamaha 40HP, 50HP, 60HP and 70HP power-trim systems
• Yamaha 75HP, 80HP, 85HP and 90HP
• Yamaha 115HP and 130HP
• Yamaha 150HP, 175HP and 200HP two-stroke
• Yamaha Z150, Z175 and Z200 HPDI
• Yamaha F115 and F150 four-stroke
• Yamaha F200, F225 and F250 four-stroke
• Yamaha 70TLR and 90ETL trim assemblies
• Yamaha 150TXRC and related 64E-series hydraulic units
• HP Range: Commonly 40HP - 250HP
• Engine Type: Yamaha two-stroke, HPDI and four-stroke outboard power trim
• Year Range: Approximately 1990 - 2024, dependent on valve-body design

🔌 Function

The O-ring seals the manual hydraulic bypass valve so trim pressure is retained during normal powered operation.

⚠️ Common Signs of Failure

• Engine slowly lowers after being trimmed
• Hydraulic oil leaks near the manual-release screw
• Trim unit bypasses even when the screw is closed
• O-ring becomes flattened, cut or swollen
• Manual-release valve will not reseal after operation

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 93210-10M74 current Yamaha OEM service reference

OEM / Related Numbers

• 93210-10M74
• 93210-10M74-00
• 9321010M7400
• 6H1-43845-01 related manual-release screw
• 6H1-43847-00 related manual-valve seat
• 6H1-43854-00 related manual-release spring
• 64E-4388J-00 related hydraulic plug

Aftermarket / Verified Equivalents

• Direct replacement hydraulic O-ring: 93210-10M74
• Included in selected aftermarket power trim valve-body seal kits

📦 Condition

• Genuine Yamaha part
• Brand new
• Supplied in original or equivalent packaging